Physiology Which pa of collecting duct is functionally similar to the later segment of distal tubule? A Coical pa of collecting duct. B Thin ascending pa of collecting duct. C Thick ascending pa of collecting duct. D Medullary pa collecting duct. 💡 Explanation Which pa of collecting duct is functionally similar to the later segment of distal tubule? ✓ Correct Answer: A. Coical pa of collecting duct.